Improvement in pipe-tongs



G. .A. HARBIAUGH.

Pipe-Tongs.

No. 199,539, Patented Ian. 22. 1878.;

INVENTOR, @aflya a. iawdaw y. fawr/re. 6m

WRTNESSES ATTORNEYS.

N. PETE. PHOTO-IJTHOGMPHER, WASHINGTON. DVVO.

AMP. i

UNITED STATES PATENT OFFICE.

GEORGE A. HARBAUGH, OF BELLEFONTE, PENNSYLVANIA.

IMPROVEMENT IN PlPE-TONGS.

Specification forming part of Letters Patent No. 199,539, dat d January2, 1873; app ti l August 18, 1877.

To all whom it may concern:

Be it knownthat I, GEORGE A. HARBAUGH, of Bellefonte, in the county ofCentre and State of Pennsylvania, have invented a new and valuableImprovement in Pipe-Tongs; and I do hereby declare that the following isa full, clear, and exact description of the construction and operationof the same, reference being had to the annexed drawings, making a partof this specification, and to the letters and figures of referencemarked thereon.

Figure 1 of the drawings is a representation of a sectional plan view ofmy pipe-tongs, and Fig. 2 is a detail thereof.

The nature of my invention consists in the construction and arrangementof a pair'of pipe-tongs, as will be hereinafter more fully set forth.

The annexed drawing, to which reference is made, fully illustrates myinvention.

A and B represent the handles, formed, re-

, spectively, with the bit-jaw O and hook- D.

The jaw O has on its inner side an offset at a, with a circular recess,1), as shown, to receive a pawl-bit, G, capable of turning slightly inthe circular recess.

The object of using such bit is for the protection of the sharp edge inits backward movement while using. It tips slightly forward in the backmovement of the tongs, and is always held in position for a fresh gripeon the pipe by the action of a light spring, 01, resting upon the frontof it. This spring is fastened on the front of the jaw G, and passesthrough a slot inthe end thereof to bear on the bit. a

The two parts of the pipe-tongs are pivoted together by means of a bolt,E, which passes through an elongated slot, 6, inthe handle B. Aroundthis slot, on the outside of the handle, is a metal plate, It, having aseries of holes or slots, 43 i, on both sides of the slot c. On the endof the bolt E is placed a metal plate or washer, J, having two studs,.1: w, to enter the slots i in the plate h, and a nut, I, is thenscrewed on the end of the bolt to fasten the parts together.

It will readily be seen that the two jaws of the tongs can easily andquickly be adjusted to suit any sized pipe by loosening the nut I andplacing the studs w of the washer J in other slots in the plate h. Thesestuds may be placed in the slots or notches squarely across thebolt-slot, or be placed diagonally and followed by the nut I, and theparts thus held into any required position.

Below the washer J, surrounding the bolt E, is a spiral spring, m, whichraises the washer as soon as the nut I is loosened.

What I claim as new, and desire to secure by Letters Patent, is-

In pipe-tongs, the combination of the handle A, bolt E, handle B, withslot 6, plate h, with notches 'i, the washer J, with studs 00, and thenut I, all substantially as and for the purposes herein set forth.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

GEORGE A. HARBAUGH.

Witnesses H. Y. STITZER, WM. NEwooMER.

